Triple Eccentric Butterfly Valve Features:

Size: DN50~DN500, 2”-20”

Pressure range: PN10~PN250, Class150~Class1500

End connection: Wafer type (clamp type), RF

Material: WCB，WC6，LCB ,CF8，CF8M，CF3M, LCB,904L, 316Ti , Duplex stainless steel, Monel, Hastelloy, (Special Materials on Request)

Actuator type:

Pneumatic actuator: Pneumatic fork type or pneumatic piston actuator

Air supply: 3-7bar

Failure position: single acting : Normally closed (NC),Normally open(NO)  and double acting 

Triple Eccentric Butterfly Valve sealing surface adopts a conical shape, with an angle eccentricity on the horizontal center. The valve stem is eccentric in both axial and radial distances relative to the center of the flow path, achieving friction less movement between the butterfly plate sealing ring and the valve seat sealing surface before closing. The pressure angle on the sealing surface is greater than the friction angle, resulting in extremely low resistance when opening the butterfly plate and quickly achieving an automatic close-seal action.It features advanced structure, reliable sealing, long lifespan, and low cost. It is an economical and practical self-control valve with both regulation and cutoff functions.Widely used to control large flow, medium to low pressure differential, and fluids requiring tight leakage control. This product complies with the GB/T4213-2008 standard.